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Hybrid rectenna and monolithic integrated zero-bias microwave rectifier

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3 Author(s)
Zbitou, J. ; RF & Microwave Group, Ecole Suprieure d''Electronique de l''Ouest, Angers ; Latrach, M. ; Toutain, Serge

In this study, we have developed a hybrid sensitive rectenna (rectifier + antenna) system at 2.45 GHz. To achieve this system, we have first optimized and validated a zero-bias microwave sensitive rectifier using commercial Schottky diodes. We have then optimized and achieved a 2times2 patch antenna array, which is associated to the microwave rectifier in order to validate the rectenna system, where an RF-dc conversion efficiency of 56% has been observed experimentally. In order to minimize the rectenna dimensions, we have conducted a study using the OMMIC ED02AH 0.20-mum GaAs pseudomorphic high electron-mobility transistor process to develop and achieve a monolithic rectifier at 2.45 GHz with RF-dc conversion efficiency of 65%

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:54 ,  Issue: 1 )